Patents by Inventor Thomas Wilnsch

Thomas Wilnsch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Use of substituted vinyl-tetrahydronaphthalenes and vinyl-benzotetrahydropyrans as light protection agents
    Patent number: 6680390
    Abstract: The invention relates to the use of compounds of the formula I in which X is the divalent radical of oxygen, a carbonyl radical, optionally aliphatically substituted imino or the radical ═CR9R10, Y is a carbonyl group or the radical ═CR9R10, R1 and R2 are identical or different electron-withdrawing radicals, chosen from the group consisting of cyano, alkyl- or arylcarbonyl, alkyloxy- or aryloxycarbonyl, optionally substituted aminocarbonyl, alkyl- or arylsulfinyl, alkyl- or arylsulfonyl and optionally substituted aminosulfonyl, R3 is a hydrogen atom, a cyano, hydroxyl, carboxyl or aminocarbonyl group or a C5-C20-aryl radical or C1-C20-alkylradical optionally bonded via an oxygen bridge, an aminocarbonyl bridge or oxycarbonyl bridge, R4 is a hydrogen atom, a hydroxyl group, an amino group, or a C5-C20-aryl radical or C1-C20-alkyl radical optionally bonded via an oxygen bridge, and R5 to R10 independently of one another are hydrogen or C1-C20-alkyl radicals and where in additio
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: January 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Frank Prechtl, Thorsten Habeck, Horst Westenfelder, Thomas Wilnsch
  • Use of substituted vinyltetrahydronaphthalenes and vinyl-benzotetrahydropyrans as light protection agents
    Publication number: 20030082118
    Abstract: The invention relates to the use of compounds of the formula I 1
    Type: Application
    Filed: June 18, 2002
    Publication date: May 1, 2003
    Inventors: Frank Prechtl, Thorsten Habeck, Horst Westenfelder, Thomas Wilnsch